A stork has landed a Polish charity in hot water after a SIM card inside a GPS tracker used to trace its migratory habits was removed and used to make a series of phone calls – in Africa. The tracker had been placed on the bird last year in Siedlce, with the stork since covering 6,000 kilometers before settling in the Blue Nile Valley in Sudan sometime in February.

There, it’s trail went cold, that is until EcoLogic, the organization responsible for fitting the bird with its tracker, were handed a phone bill in excess of zł. 10,000. According to BBC News, the SIM card had been removed and used to make over 20 hours of calls, all of which EcoLogic must now cover themselves.